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Add call link scrubbing for logs.

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Alex Hart 2023-06-16 09:54:19 -03:00 • committed by Nicholas Tinsley
parent 6cc8e87d46
commit 3bdffed8c9
2 changed files with 29 additions and 0 deletions
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17
core-util/src/main/java/org/signal/core/util/logging/Scrubber.java
View file

@ -89,6 +89,12 @@ public final class Scrubber {
"mobi", "by", "cat", "wiki", "la", "ga", "xxx", "cf", "hr", "ng", "jobs", "online", "kz", "ug", "gq", "ae", "is",
"lv", "pro", "fm", "tips", "ms", "sa", "app"));
/**
* Base16 Call Link Key Pattern
*/
private static final Pattern CALL_LINK_PATTERN = Pattern.compile("([bBcCdDfFgGhHkKmMnNpPqQrRsStTxXzZ]{4})(-[bBcCdDfFgGhHkKmMnNpPqQrRsStTxXzZ]{4}){7}");
private static final String CALL_LINK_CENSOR_SUFFIX = "-XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XXXX";
public static CharSequence scrub(@NonNull CharSequence in) {
in = scrubE164(in);
@ -98,6 +104,7 @@ public final class Scrubber {
in = scrubUuids(in);
in = scrubDomains(in);
in = scrubIpv4(in);
in = scrubCallLinkKeys(in);
return in;
}
@ -171,6 +178,16 @@ public final class Scrubber {
(matcher, output) -> output.append(IPV4_CENSOR));
}
private static CharSequence scrubCallLinkKeys(@NonNull CharSequence in) {
return scrub(in,
CALL_LINK_PATTERN,
((matcher, output) -> {
String match = matcher.group(1);
output.append(match);
output.append(CALL_LINK_CENSOR_SUFFIX);
}));
}
private static CharSequence scrub(@NonNull CharSequence in, @NonNull Pattern pattern, @NonNull ProcessMatch processMatch) {
final StringBuilder output = new StringBuilder(in.length());

12
core-util/src/test/java/org/signal/core/util/logging/ScrubberTest.java
View file

@ -113,6 +113,18 @@ public final class ScrubberTest {
{ "Not an ipv4 3.141",
"Not an ipv4 3.141"
},
{ "A Call Link Root Key BCDF-FGHK-MNPQ-RSTX-ZRQH-BCDF-FGHM-STXZ",
"A Call Link Root Key BCDF-XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XXXX"
},
{ "Not a Call Link Root Key (Invalid Characters) BCAF-FGHK-MNPQ-RSTX-ZRQH-BCDF-FGHM-STXZ",
"Not a Call Link Root Key (Invalid Characters) BCAF-FGHK-MNPQ-RSTX-ZRQH-BCDF-FGHM-STXZ"
},
{ "Not a Call Link Root Key (Missing Quartet) BCAF-FGHK-MNPQ-RSTX-ZRQH-BCDF-STXZ",
"Not a Call Link Root Key (Missing Quartet) BCAF-FGHK-MNPQ-RSTX-ZRQH-BCDF-STXZ"
}
});